Seiko Cal. 0730 - 503

This Spring Drive model from 1965 features a 46mm Stainless Steel case. With its 19mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-6072f936b482]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1965

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